C&I449
Karim
Ezzatkhah
1-Statement of the
Issue: Three reforms have been occurred in
the USA to improve teaching and learning mathematics in schools in the twenty
century. Based on these renew of
mathematics education programs, students education also has changed. Reform
under the banner of NCTM began in the recent decade. The aim of this movement is developing student’s mathematical
power (Kilpatrick1992). This is the key
word of the last reform. Most of researchers
have found that students are coming to school with a lot of mathematical
knowledge (Ginsburg &al 1997). D’
Ambrosio (1984,1985) has used the expression (ethno mathematics) to refer to
forms of mathematics that vary as a consequence of being embedded in cultural
activities. Thy have learned this knowledge of mathematics out of school and
during their everyday communication and experience. Therefore early experiences
establish a base for further mathematical knowledge that grows in school
settings. Over the last decade scholars have revised considerably their
assumption about mathematics learning. In mathematics classes teachers are as
learner. Ann L. Brown mentioned in community of learning project the teacher is
not far away from learning opportunity. The teacher learns along with the
children as well as assists their efforts. She also believes that learners
develop at different rates. So in a community as classroom, teacher would learn
in his/her own rate. Most of scientists and philosophers and religious leaders
have emphasized a long life learning for human beings. Over all academic
learning is active, strategic, self-conscious, self-motivated and purposeful.
2-Brief review of relevant research:
Today we have a large body of research findings on learning in cognitive
domain. This knowledge is growing faster and is supported by educators,
educational psychologists and teachers.
Researchers and educationist psychologists revised their assumptions
about human learning in the last decade based on research findings (Peterson
1994). Many of their ideas are not new and have evolved from ideas of Piaget,
Dewey and vygotsky. Interviewing children and studying the development of
children’s mathematical knowledge emerged that; students come to school with a
lot of mathematical knowledge. From these studies of children mathematical
knowledge, researchers developed framework of children’s mathematical knowledge
in several mathematical domains (Carpenter 1986 and Riley & Greeno, 1988).
So children try to understand and think about the new schooling knowledge in
terms of they already know (Glaser. 1984). Recently researchers argue that
mathematics learning is an individual, creative activity and a communal, social
practice (Cobb, Yackel, and Wood, 1992).
Similarly
researchers assume that learners have to construct their own
knowledge-individually and collectively (Davis, Moher and Noddings 1990). If
learning is viewed as social and communal as well as individual and
constructive, then the question of how meaning comes to be shared becomes
important. Therefore researchers are increasingly focusing on the potential
conversational patterns of discourse as compared with the lecture recitation
pattern of discourse that has traditionally predominated in classrooms (Cazden
1986). Constructivist, which has its roots in the ideas of Jean Piaget, takes
point of view that individuals actively construct the mathematical knowledge in
mathematics learning processes (from what they know to what they do not know).
This construction of the knowledge is lifelong, effortful process requiring
significant mental engagement by the learner individually and socially. So the
new mathematical knowledge will not make sense to us and may be constructed in
a way that is not useful for long term recall or for application in a variety
of situations (Resnick 1983). Researchers by interview techniques concluded
that children do invent solutions to mathematics problem (davis, 1984).
Student’s literature is a body of Mathematical knowledge that emerged from
research studies. This knowledge of mathematics in early childhood can help
children to assimilate school knowledge of mathematics (Ginsburg, 1984 and NCTM, 1991).
Organizing
mathematical knowledge is another issue; researchers have modeled in the recent
years. Piaget model of learning organization is a structure of knowledge that,
he nominates cognitive structure. These structures can be envisioned as
constituting an interconnected hierarchical network. The fundamental principles
and concepts occupied higher levels of hierarchy, and supplementary concepts
and many examples and non-examples stored in the lowest levels (piaget &
Inhelder 1965). Recently research findings suggest that experts and novices
organize their mathematical knowledge in memory rather differently. Within such
a model of knowledge, experts have more concepts, more relations about defining
each part of knowledge more interrelation among concepts and finally effective
methods for receiving related concepts (Mertre 1991; Glaser, 1992).
3-Major approaches: Three major views in mathematics learning have influenced.
1- Behaviorist view: In this view students to learn a complex process is to
break down the process into component parts, learn each part then, put together
the components to obtain desired behavior. 2- Levinien rationalist premise that
human interaction is ultimately dependent on the cognitive processing of
information that is on the world as cognized, not the world as it is. 3- Constructivist that represents the latest
model of child-centered learning (Learman & Dengate1995). From the recent
theory (constructivist view) an investigative approach has emerged that
involves purposeful inquiry based on meaningful instruction and, thus, can
foster all aspects of mathematical power (Baroody 1998). According to Piaget,
logical knowledge consists of the cognitive structures that assimilate and
accommodate to all incoming information (Piaget and Inhelder 1960).
4-Conclusions: Mathematics Learning Model: the model of learning is based
on social constructivist views and The National Council of Teachers of
Mathematics (NCTM) standards. The main goal of learning mathematics is
fostering student’s mathematical power (NCTM 1989). Developing mathematical
power can be interpreted in several ways. The important point is, students have
to be able to apply their mathematical knowledge in other unfamiliar
situations. Therefore the students should learn mathematics:
1-
With willingness and the
self-confidence.
2-
To engage in process of
inquiry by reasoning, conjecturing, solving challenging problems and
communicating.
3-
With deep understanding and
connected to everyday life.
The roots of deep understanding of mathematics are in Jean
Piaget’s cognitive Theory (Piaget & Inhelder 1965).
Learning model
shows close relationship between learner and learning situation that teacher
has planned before. Learner is dependent variable and learning situation is
independent variable. When learner looses his/her equilibrium with learning
situation, is going to obtain balance. On the way of obtaining balance, learner
needs to try and shows up as an active learner in the learning scene. These
processes continue until learner becomes satisfied. The products of these
activities are learning, that assimilate or accommodate in the learner
cognitive structure and then, transfer to long-term memory. In other word
learning is producing new ideas and thoughts. In this model the duty of teacher
is performing learner situation and leads learner to be active and productive
in the learning situation.
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Learner Touching
learner needs motivation Learning activities
y
Interaction Y=f (x) Learning
![]()
Learning L.T
Memory
Situation Role of the teacher(creating learning
situation)
Learning Model
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